CN105047683A - Organic light emitting diode display - Google Patents
Organic light emitting diode display Download PDFInfo
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- CN105047683A CN105047683A CN201510094807.0A CN201510094807A CN105047683A CN 105047683 A CN105047683 A CN 105047683A CN 201510094807 A CN201510094807 A CN 201510094807A CN 105047683 A CN105047683 A CN 105047683A
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/16—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering
- H10K71/166—Deposition of organic active material using physical vapour deposition [PVD], e.g. vacuum deposition or sputtering using selective deposition, e.g. using a mask
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8428—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/352—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels the areas of the RGB subpixels being different
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
- H10K59/8723—Vertical spacers, e.g. arranged between the sealing arrangement and the OLED
Abstract
An organic light emitting device includes: a first substrate (Su1); a plurality of electrodes (E1, E2, E3) on the first substrate; a pixel definition layer (PDL) on the plurality of electrodes and including a plurality of openings and respectively exposing the plurality of electrodes; and a spacer (SPC) on the pixel definition layer, wherein the pixel definition layer includes a first opening and a second opening adjacent to each other along a first direction by an interval for each pixel, and a third opening adjacent to the first opening and the second opening by an interval along a second direction crossing the first direction, and wherein the spacer is at a crossing point of a first imaginary line (VL1) extending in the first direction and passing between the first opening and the third opening and a second imaginary line (VL2) extending in the second direction and passing between the first opening and the second opening.
Description
Technical field
The many aspects of embodiments of the invention relate generally to a kind of organic light emitting apparatus.
Background technology
Organic light emitting diode display comprises two electrodes and the organic emission layer between two electrodes.Electronics from an electrode injection as negative electrode is bonded to each other to produce exciton with the hole from another electrode injection as anode organic emission layer, and exciton emission energy is with utilizing emitted light.
Organic light emitting diode display has self-luminous characteristic, because it does not need independent light source (being different from liquid crystal display), so it can have relatively little thickness and weight.In addition, because organic light emitting diode display shows the high-quality characteristic of such as low-power consumption, high brightness, high response speed etc., so it receives a lot of concern as display unit.
Organic light emitting apparatus can comprise the first substrate, have the image element circuit of thin-film transistor, be attached to the first electrode of image element circuit, the pixel confining layers with multiple openings of exposure first electrode and the separator be positioned in pixel confining layers.In addition, organic emission layer can be positioned on the first electrode with opening accordingly, and the second electrode is positioned in organic emission layer, and the second substrate is positioned on the second electrode.
Separator can space between the multiple openings determined by pixel confining layers, and can perform the function supporting deposition mask in the organic material depositing operation using deposition mask.In this case, foreign substance can gather while the edge of opening of deposition mask contacts with the top center (topcenter) of separator.In the process of depositing operation, foreign substance can gather and its size is increased, and the foreign substance increased can cause the marking within the pixel, produces defective pixel thus.
Disclosed in this background technology part, above-mentioned information is only for strengthening the understanding of the background to the technology described, and therefore it can comprise the information of the prior art be not formed in this country known to those of ordinary skill in the art.
Summary of the invention
The many aspects of embodiments of the invention relate generally to a kind of organic light emitting apparatus.In addition, embodiments of the invention relate generally to a kind of organic light emitting apparatus limited by pixel in pixel confining layers.
The many aspects of embodiments of the invention comprise a kind of organic light emitting apparatus, although perform depositing operation in the deposition process of organic material while supporting deposition mask by separator, this organic light emitting apparatus has the separator minimizing or prevent the foreign substance that can be produced by the edge of opening of deposition mask from gathering.
In addition, embodiments of the invention comprise a kind of organic light emitting apparatus, and this organic light emitting apparatus can by preventing from or reduce the foreign substance produced by the edge of opening of deposition mask in organic material deposition gathering and preventing or reduce because foreign substance gathers the marking caused.
According to some embodiments of the present invention, organic light emitting apparatus comprises: the first substrate, multiple electrode, is positioned in the first substrate, pixel confining layers, being positioned on described multiple electrode and comprising multiple opening, described multiple opening exposes described multiple electrode respectively, and separator, be positioned in pixel confining layers, wherein, pixel confining layers comprises the first opening, second opening and the 3rd opening, first opening and the second opening adjacent one another are by spacing along first direction for each pixel, the second direction that 3rd opening edge and first direction intersect is adjacent with the second opening with the first opening by spacing, wherein, separator is positioned at the crosspoint place of the first imaginary line and the second imaginary line, first imaginary line extends along first direction and passes between the first opening and the 3rd opening, second imaginary line extends along second direction and passes between the first opening and the second opening.
First organic emission layer can be positioned at the first opening part of the pixel confining layers at the first luminous organic material place, second organic emission layer can be positioned at the second opening part of the pixel confining layers at the second organic emissive materials place, and the 3rd organic emission layer can be positioned at the 3rd opening part of the pixel confining layers at the 3rd organic emissive materials place.
At least one in first organic emissive materials, the second organic emissive materials and the 3rd organic emissive materials can be positioned on pixel confining layers or separator.
First imaginary line can pass between the first opening in one pixel and the 3rd opening, second imaginary line can pass laying respectively between the first opening in the pixel adjacent one another are along first direction and adjacent one another are and the second opening, and separator can comprise first separator at the crosspoint place being positioned at the first imaginary line and the second imaginary line.
3rd imaginary line can extend along first direction and pass between the first opening adjacent one another are and the 3rd opening in the pixel adjacent one another are along second direction, and separator can comprise second separator at the crosspoint place being positioned at the second imaginary line and the 3rd imaginary line.
First separator and the second separator alternately can be arranged along first direction for each pixel.
First separator and the second separator alternately can be arranged along second direction for each pixel.
First separator and the second separator can be away form one another and give prominence to along opposite directions when the 3rd opening is arranged between which.
Separator can have leg-of-mutton flat shape.
Separator can have the first limit extended along first direction, and the first drift angle in the face of the first limit is outstanding towards the region between the first opening and the second opening.
Separator can have the first limit extended along first direction, and can have and comprise in the face of the first limit and the polygonal flat shape of the protuberance given prominence to towards the region between the first opening and the second opening.
Separator can have respectively towards the outstanding protuberance of the region between the first opening and the second opening and the first opening or the region between the second opening and the 3rd opening.
First imaginary line can pass between the first opening in one pixel and the 3rd opening, 4th imaginary line can extend along second direction and pass between the first opening in one pixel and the second opening, and separator can be positioned at the crosspoint place of the first imaginary line and the 4th imaginary line.
Separator alternately can be arranged along first direction for a pixel.
Separator alternately can be arranged along second direction for a pixel.
Separator can have leg-of-mutton flat shape.
Separator can have the first limit extended along first direction, and the first drift angle in the face of the first limit is outstanding towards the region between the first opening and the second opening.
Separator can have the first limit extended along first direction, and can have and comprise in the face of the first limit and the polygonal flat shape of the protuberance given prominence to towards the region between the first opening and the second opening.
Separator can have respectively towards the outstanding protuberance of the region between the first opening and the second opening and the first opening or the region between the second opening and the 3rd opening.
In separator, the tranverse sectional thickness at center in the plane can be larger than the tranverse sectional thickness at edge in the plane.
According to some embodiments of the present invention, for the manufacture of in the method for organic light emitting apparatus, described method comprises: in the first substrate, form multiple electrode, form pixel confining layers and be positioned at first suprabasil multiple electrode to cover, in pixel confining layers, form multiple opening with corresponding with multiple electrode, thus expose multiple electrode, pixel confining layers forms separator, separator is installed the deposition mask with the mask open corresponding with the opening of pixel confining layers, and deposit organic emissive materials by mask open, wherein, pixel confining layers comprises the first opening, second opening and the 3rd opening, first opening and the second opening adjacent one another are by spacing along first direction for each pixel, the second direction that 3rd opening edge and first direction intersect is adjacent with the second opening with the first opening by spacing, wherein, separator is positioned at the crosspoint place of the first imaginary line and the second imaginary line, first imaginary line extends along first direction and passes between the first opening and the 3rd opening, second imaginary line extends along second direction and passes between the first opening and the second opening, wherein, the edge of mask open separates with the top of separator.
The edge of mask open can have the turning being formed with curve.
The deposition step of organic emissive materials can comprise: form the first organic emission layer by depositing the first organic emissive materials at the first opening part of pixel confining layers; The second organic emission layer is formed by depositing the second organic emissive materials at the second opening part of pixel confining layers; And form the 3rd organic emission layer by the 3rd opening part deposition the 3rd organic emissive materials in pixel confining layers.
According to organic light emitting apparatus as above, although perform depositing operation in the deposition process of organic material while supporting deposition mask by separator, can reduce or prevent the foreign substance that can additionally be produced by the edge of opening of deposition mask from gathering.
In organic material deposition, gather by preventing or reducing the foreign substance that can be produced by the edge of opening of deposition mask, can prevent or reduce the marking caused because foreign substance gathers.
Accompanying drawing explanation
Fig. 1 is the vertical view of the viewing area of the organic light emitting apparatus partly illustrated according to the first example embodiment.
Fig. 2 is the cutaway view intercepted along the line II-II of Fig. 1.
Fig. 3 is the vertical view of the state that the viewing area of the organic light emitting apparatus of Fig. 1 covers with being deposited Mask portion.
Fig. 4 is the cutaway view intercepted along the line IV-IV of Fig. 3.
Fig. 5 with Fig. 6 is by the layout view of state used in the manufacturing process that the organic light emitting apparatus that deposition mask that the organic material for pixel different from the deposition mas shown in Fig. 3 deposits is shown in Figure 1 is shown.
Fig. 7 illustrates to use different deposition mask to deposit the vertical view of the result of organic emissive materials according to the predefined procedure for the manufacture of the organic light emitting apparatus shown in Fig. 1.
Fig. 8 is the vertical view of the viewing area of the organic light emitting apparatus of the distortion partly illustrated according to the first example embodiment.
Fig. 9 is the vertical view of the viewing area of the organic light emitting apparatus partly illustrated according to the second example embodiment.
Embodiment
In the following detailed description, only specific example embodiment is illustrate and described simply by the mode illustrated.As those skilled in the art will appreciate, when all do not depart from the spirit or scope of the present invention, described embodiment can be revised in a variety of ways.Accompanying drawing and description will be considered to illustrative and nonrestrictive in essence.In whole specification, same Reference numeral indicates same element.In addition, in order to understand and be convenient to describe, size and the thickness of each structure illustrated in the accompanying drawings is optionally shown, but the present invention is not limited thereto.
In the description of specification, " ... on " refer to above or below target member position, instead of refer to must position above target member with reference to gravity direction.In the specification and claims whole, unless carried out contrary description clearly, otherwise word " comprises " or such as " comprise " or the distortion word of " including " comprises stated element by being understood to mean and do not get rid of other element any.
Now, with reference to Fig. 1 and Fig. 2, the organic light emitting apparatus according to the first example embodiment is described.
Fig. 1 is the vertical view of the viewing area of the organic light emitting apparatus partly illustrated according to the first example embodiment, and Fig. 2 is the cutaway view intercepted along the line II-II of Fig. 1.In FIG, conveniently, basically illustrate the first electrode, pixel confining layers, organic emission layer and separator, and eliminate and describe incoherent part and construct, show unshowned first substrate, the second substrate, common electrode and shared layer in FIG in fig. 2 in the lump simultaneously.
As shown in Figures 1 and 2, the first substrate SU1, circuit part PC, the first electrode E1, the second electrode E2, third electrode E3, pixel confining layers PDL, separator SPC1 and SPC2, the first shared layer CL1, the first organic emission layer OL1, the second organic emission layer OL2, the 3rd organic emission layer OL3, the second shared layer CL2, common electrode CE and the second substrate SU2 is comprised according to the organic light emitting apparatus 100 of the first example embodiment.
First substrate SU1 is formed by dielectric base, such as, is made up of glass, quartz, pottery and plastics etc.In addition, the first substrate SU1 can be the flexible substrates of such as plastics, and organic light emitting apparatus 100 can have flexible characteristic thus.
Circuit part PC is positioned on the first substrate SU1, and the image element circuit of wiring and such as two or more thin-film transistors (TFT) and one or more capacitor etc. can be comprised, wherein, wiring comprises one or more bar scan line, data wire, driving power supply line and is total to power line etc., and image element circuit is attached to wiring with corresponding with each pixel.Circuit part PC can be formed as having various known structure.Here, pixel refers to the minimum unit showing image, and can comprise multiple sub-pixels of display shades of colour.
According in the organic light emitting apparatus of this example embodiment, multiple first electrode E1 and multiple second electrode E2 alternately arranges along first direction (y-axis direction), multiple third electrode E3 arranges abreast along first direction, is provided in the second direction (x-axis direction) of intersecting with first direction upper adjacent with the second electrode E2 with the first electrode E1 simultaneously.Therefore, multiple comprise the first electrode E1 and the second electrode E2 the first array of sub-pixels and multiple the second array of sub-pixels comprising third electrode E3 alternately arrange along second direction.
First electrode E1, the second electrode E2 and third electrode E3 can be the anode of the function with hole injecting electrode respectively and have the negative electrode of function of electron injection electrode.First electrode E1, the second electrode E2 and third electrode E3 can be formed as light-transmissive electrode, the saturating reflecting electrode of light or light reflecting electrode.
Pixel confining layers PDL is positioned on the first electrode E1, the second electrode E2 and third electrode E3, and covers each edge in the first electrode E1, the second electrode E2 and third electrode E3.Pixel confining layers PDL comprises the first opening OM1, the second opening OM2 and the 3rd opening OM3, and each part in the first electrode E1, the second electrode E2 and third electrode E3 is exposed by the first opening OM1, the second opening OM2 and the 3rd opening OM3.
First opening OM1 exposes a part of the first electrode E1, and substantially has rectangular shape.First opening OM1 separates with the 3rd opening OM3 and the second opening OM2, and has the area less than the area of the 3rd opening OM3.First opening OM1 has rectangular shape, but is not limited thereto, and the first opening OM1 can have the polygonal shape of such as triangular shaped, quadrangle form, pentagon shaped, hexagonal shape, heptagon shape and octagon-shaped.The quantity of the first opening OM1 is multiple with multiple first electrode E1 accordingly, each part in the multiple first electrode E1 of each exposure in multiple first opening OM1.First organic emission layer OL1 of red-emitting is positioned at by the first electrode E1 of the first opening OM1 exposure.Meanwhile, can optionally the organic emission layer of the light launching such as blue, green and white shades of colour be arranged on the first electrode E1 exposed by the first opening OM1.
Here, organic emission layer is formed in the opening of organic emissive materials via mask by the region place deposited substantially, if voltage or electric current are applied to the electrode corresponding to organic emission layer, then launches the light of predetermined color.
But, because organic emission layer deposits via the opening of mask and is formed in the region place corresponding with the opening of mask, so organic emissive materials can be deposited on the region wider than the opening of pixel confining layers, organic emissive materials can be positioned on pixel confining layers and separator thus.But in the description explaining the present embodiment and accompanying drawing, organic emission layer is restricted to and deposits organic emissive materials and operated with radiative region by applying voltage or electric current.
Second opening OM2 exposes a part of the second electrode E2, and substantially has rectangular shape.Second opening OM2 has rectangular shape, but is not limited thereto, and the second opening OM2 can have the polygonal shape of such as triangular shaped, quadrangle form, pentagon shaped, hexagonal shape, heptagon shape and octagon-shaped.The quantity of the second opening OM2 is multiple with multiple second electrode E2 accordingly, each part in the multiple second electrode E2 of each exposure in multiple second opening OM2.Second organic emission layer OL2 of transmitting green light is positioned at by the second electrode E2 of the second opening OM2 exposure.Meanwhile, the organic emission layer of the light launching such as blue, red and white shades of colour can be arranged on the second electrode E2 exposed by the second opening OM2.
3rd opening OM3 exposes a part of third electrode E3, and substantially has the rectangular shape comprising long a pair limit and the pair of short edges corresponded to each other.3rd opening OM3 separates with the first opening OM1 and the second opening OM2, and has than the area of the first opening OM1 and the large area of the area of the second opening OM2.3rd opening OM3 has rectangular shape, but is not limited thereto, and the 3rd opening OM3 can have the polygonal shape of such as triangular shaped, quadrangle form, pentagon shaped, hexagonal shape, heptagon shape and octagon-shaped.Quantity and multiple third electrode E3 of the 3rd opening OM3 are multiple accordingly, each part in each exposure multiple third electrode E3 in multiple 3rd opening OM3.The 3rd organic emission layer OL3 launching blue light is positioned at by the third electrode E3 of the 3rd opening OM3 exposure.Meanwhile, can optionally the organic emission layer of the light launching such as green, red and white shades of colour be arranged on the third electrode E3 exposed by the 3rd opening OM3.
Aforesaid first opening OM1, the second opening OM2 and the 3rd opening OM3 are separated from one another, and each minor face in the first opening OM1 and the second opening OM2 is in the face of the long limit of the 3rd opening OM3.
On the other hand, in FIG, first imaginary line VL1 in the plane be included between the first opening OM1 in same pixel PX (or second opening OM2) and the 3rd opening OM3 through and extend along first direction (y-axis direction), second imaginary line VL2 passes and extends along second direction (x-axis direction) between the first opening OM1 and the second opening OM2 of the pixel PX adjacent one another are along first direction, 3rd imaginary line VL3 passes and extends along first direction between the first opening OM1 (or second opening OM2) and the 3rd opening OM3 of the pixel adjacent one another are along second direction.
In this exemplary embodiment, separator SPC1 and SPC2 comprises the first separator SPC1 at the crosspoint place being positioned at the first imaginary line VL1 and the second imaginary line VL2 and is positioned at the second separator SPC2 at crosspoint place of the 3rd imaginary line VL3 and the second imaginary line VL2.
Separator SPC1 and SPC2 is arranged throughout the border of multiple pixels of arranging along first direction, and alternately arranges for each pixel.Namely, first separator SPC1 arranges along first direction for two pixels on the first imaginary line VL1, second separator SPC2 arranges along first direction for two pixels on the 3rd imaginary line VL3, and the second separator SPC2 and the first separator SPC1 alternately arranges for each pixel.
In this exemplary embodiment, the flat shape of separator SPC1 and SPC2 is triangular shaped, the first edge first direction on triangle of separator SPC1 and SPC2 extends and is parallel to the long limit of the 3rd opening OM3, and the first drift angle in the face of the first limit is outstanding towards the region between the first opening OM1 and the second opening OM2.In this case, first separator SPC1 and the second separator SPC2 is formed as away form one another and the 3rd opening OM3 is arranged between the first separator SPC1 and the second separator SPC2, makes first drift angle of first drift angle of the first separator SPC1 and the second separator SPC2 outstanding along contrary direction.
As shown in Figure 2, when watching in the cross-section, separator SPC1 is positioned on pixel confining layers PDL, and the tranverse sectional thickness at center in the plane can be larger than the tranverse sectional thickness at edge, and this can control according to process conditions.That is, the edge in the plane of the shape of cross section of separator SPC1 and SPC2 is low, and the height at center increases gradually.Here, " flat shape " refers to the determined shape when watching along the direction vertical with the surface of the first substrate SU1, and " shape of cross section " refers to the shape intercepted along the perpendicular cuts on the surface relative to substrate.
Separator SPC1 and SPC2 can form with pixel confining layers PDL, or can be formed by the material different from the material of pixel confining layers PDL.When separator SPC1 with SPC2 is formed by the material of type identical with the material of pixel confining layers PDL, the boundary line between them can be difficult to separate.
First shared layer CL1 is positioned on the first electrode E1, the second electrode E2, third electrode E3, pixel confining layers PDL and separator SPC1 and SPC2, and can comprise the one deck selected from hole injection layer, hole transmission layer, electron injecting layer and electron transfer layer or more layer.
First organic emission layer OL1 is positioned on the first shared layer CL1 of being arranged on the first electrode E1 to correspond to the first opening OM1.First organic emission layer OL1 comprises the organic material of red-emitting, if apply the signal of telecommunication, the first organic emission layer OL1 can red-emitting.Meanwhile, the first organic emission layer OL1 can comprise the organic material of transmitting green, blueness or white light, and in this case, the first organic emission layer OL1 launches the light of green color, blue color or white colour.
Second organic emission layer OL2 is positioned on the first shared layer CL1 of being arranged on the second electrode E2 to correspond to the second opening OM2.Second organic emission layer OL2 comprises the organic material of transmitting green light, if apply the signal of telecommunication, the second organic emission layer OL2 can transmitting green light.Meanwhile, the second organic emission layer OL2 can comprise the organic material launching red, blue or white light, and in this case, the second organic emission layer OL2 launches the light of red color, blue color or white colour.
3rd organic emission layer OL3 is positioned on the first shared layer CL1 of being arranged on third electrode E3 to correspond to the 3rd opening OM3.3rd organic emission layer OL3 comprises the organic material launching blue light, if apply the signal of telecommunication, the 3rd organic emission layer OL3 can launch blue light.Meanwhile, the 3rd organic emission layer OL3 can comprise the organic material launching red, green or white light, and in this case, the 3rd organic emission layer OL3 launches the light of red color, green color or white colour.
That is, the first organic emission layer OL1, the second organic emission layer OL2 and the 3rd organic emission layer OL3 launch the light of different colours respectively.In addition, the 3rd organic emission layer OL3 launches blue light, any one the organic emission layer red-emitting in the first organic emission layer OL1 and the second organic emission layer OL2 and another organic emission layer transmitting green light.
Second shared layer CL2 is positioned at and is arranged on the first organic emission layer OL1, the second organic emission layer OL2, the 3rd organic emission layer OL3, and is being positioned on the first shared layer CL1 on pixel confining layers PDL and separator SPC1 and SPC2.Second shared layer CL2 can comprise the one deck selected from hole injection layer, hole transmission layer, electron injecting layer and electron transfer layer or more layer.
Common electrode CE position on the second shared layer CL2 of the whole surface of the first substrate SU1, and can be used as the negative electrode of electron injection electrode or be used as the anode of hole injecting electrode.Common electrode CE can be formed by light-transmissive electrode or light reflecting electrode.
Second substrate SU2 is formed by dielectric base, and in this exemplary embodiment, the second substrate SU2 can be formed by the thin film encapsulation layer alternately depositing multiple organic layer and inorganic layer.In addition, the second substrate SU2 can be formed by the flexible substrates of such as plastics together with the first substrate SU1, and therefore, organic light emitting apparatus 100 can be flexible.
In addition, although not shown in fig. 2, the functional layer of cover layer and such as lithium fluoride (LiF) can be formed between common electrode CE and the second substrate SU2.
Fig. 3 is the vertical view of the state that the viewing area of the organic light emitting apparatus of Fig. 1 covers with being deposited Mask portion, and Fig. 4 is the cutaway view intercepted along the line IV-IV of Fig. 3.
With reference to Fig. 3, in order to the first organic emissive materials is deposited to the first opening OM1, the first deposition mask M1 can be used.In this case, the first deposition mask M1 comprises the mask open OP1 being only formed in the part place corresponding with the first opening OM1, and the edge of mask open OP1 has the turning being formed as curve.
With reference to zoomed-in view and Fig. 4 of Fig. 3, when formation is according to the separator SPC1 of the organic light emitting apparatus 100 of this example embodiment and SPC2, in organic material depositing operation, although the first deposition mask M1 is supported by separator SPC1 and SPC2, the edge of the mask open OP1 of the first deposition mask M1 does not contact with the top of the center T of separator SPC1 with SPC2.Therefore, can reduce, minimize or prevent the foreign substance that can be produced by the edge of the mask open OP1 of the first deposition mask M1 in depositing operation from gathering, and can prevent or reduce and gather by foreign substance the marking defect caused.
Fig. 5 with Fig. 6 is by the layout view of state used in the manufacturing process that the organic light emitting apparatus that deposition mask that the organic material for pixel different from the deposition mas shown in Fig. 3 deposits is shown in Figure 1 is shown.
That is, Fig. 5 shows and is coated with the second deposition mask M2 the second organic emissive materials to be deposited to the state of the second opening OM2, and Fig. 6 shows and is coated with the 3rd deposition mask M3 the 3rd organic emissive materials to be deposited to the state of the 3rd opening OM3.In this case, the second deposition mask M2 is formed with mask open OP2 at only corresponding with the second opening OM2 part place, and the edge of mask open OP2 has the turning being formed as curve.On the other hand, in the 3rd deposition mask M3, mask open OP3 is formed as being bonded to each other along first direction by comprising the part corresponding with the 3rd opening OM3.But mask open OP3 can be formed at only corresponding with each 3rd opening OM3 part place.
With reference to Fig. 5 and Fig. 6, identifiablely be, each deposition mask is supported by separator SPC1 and SPC2, and in this case, the mask open OP2 of each deposition mask and the edge of OP3 are overlapping with the upper surface portion ground outside the center T of separator SPC1 and SPC2.Therefore, can minimize or prevent the foreign substance that can be produced by the edge of opening of deposition mask M1, M2 and M3 in depositing operation from gathering, and can prevent from gathering by foreign substance the marking defect caused.
Fig. 7 illustrates to use different deposition mask to deposit the vertical view of the result of organic emissive materials according to the predefined procedure for the manufacture of the organic light emitting apparatus shown in Fig. 1.
With reference to Fig. 7, show the formation result of the 3rd organic emissive materials layer OD3 of the first organic emissive materials layer OD1, the second organic emissive materials layer OD2 using the second deposition mask M2 deposition and use the 3rd deposition mask M3 deposition that use first deposition mask M1 deposits.
Each organic emissive materials layer OD1, OD2 and OD3 are formed as the area of each open expanse had than pixel confining layers PDL, adjacent organic emissive materials layer can border adjacent or partly overlapping.Therefore, the organic emissive materials layer depositing organic emissive materials can be positioned on pixel confining layers or separator.
Fig. 8 is the vertical view of the viewing area of the organic light emitting apparatus of the distortion partly illustrated according to the first example embodiment.In fig. 8, conveniently, basically illustrate pixel confining layers, organic emission layer and separator and deposition mask M1, and eliminate some structures with simplified characterization.
In the pixel confining layers PDL of the organic light emitting apparatus 150 according to this exemplary variations, form the first opening OM1, the second opening OM2 and the 3rd opening OM3.First opening OM1, the second opening OM2 and the 3rd opening OM3 are separated from each other respectively, and each minor face of the first opening OM1 and the second opening OM2 is in the face of the long limit of the 3rd opening OM3.
With reference to Fig. 8, organic light emitting apparatus 150 has separator SPC3 and SPC4, and separator SPC3 with SPC4 is arranged in and the position identical according to the organic light emitting apparatus 100 of the first example embodiment shown in Fig. 1.
That is, separator SPC3 and SPC4 comprises the 3rd separator SPC3 at the crosspoint place being positioned at the first imaginary line VL1 and the second imaginary line VL2 and is positioned at the 4th separator SPC4 at crosspoint place of the 3rd imaginary line VL3 and the second imaginary line VL2.
Separator SPC3 and SPC4 is arranged throughout the border of multiple pixels of arranging according to first direction, and alternately arranges for each pixel.Namely, 3rd separator SPC3 arranges along first direction for two pixels on the first imaginary line VL1,4th separator SPC4 arranges along first direction for two pixels on the 3rd imaginary line VL3, and the 4th separator SPC4 and the 3rd separator SPC3 alternately arranges for each pixel.
The flat shape of separator SPC3 and SPC4 extends along first direction, there is first limit on the long limit being parallel to the 3rd opening OM3, and can to extend towards the region between the second opening OM2 and the first opening OM1 of neighbor or the polygonal shape of outstanding protuberance is formed by having.That is, separator SPC3 and SPC4 can comprise two protuberances given prominence to towards both sides along first direction and the protuberance projected upwards in the side in the face of the first limit along second direction.
3rd separator SPC3 of formation described above and the 4th separator SPC4 is formed as giving prominence to along the direction away from the 3rd opening OM3 in the both sides of the 3rd opening OM3, and alternately arranges along about first direction.That is, the 3rd separator SPC3 and the 4th separator SPC4 is formed as away form one another when the 3rd opening OM3 is arranged between which.
When watching on cutaway view, separator SPC3 and SPC4 is formed on pixel confining layers PDL, and the tranverse sectional thickness at center in the plane can be thicker than the tranverse sectional thickness at edge.That is, in the shape of cross section of separator SPC3 and SPC4, edge is in the plane low and increase along with being close to center.
Fig. 9 is the vertical view of the viewing area of the organic light emitting apparatus partly illustrated according to the second example embodiment.In fig .9, conveniently, basically illustrate pixel confining layers, organic emission layer and separator, also show the first deposition mask M1, eliminate the description of the first electrode and uncorrelated structure.
With reference to Fig. 9, according in the organic light emitting apparatus 200 of this example embodiment, pixel confining layers is identical with organic emission layer with the pixel confining layers of the viewing area of the organic light emitting apparatus shown in Fig. 1 with organic emission layer, but the forming position of separator SPC5 can be different.
In the pixel confining layers PDL of the organic light emitting apparatus 200 according to this example embodiment, form the first opening OM1, the second opening OM2 and the 3rd opening OM3.First opening OM1, the second opening OM2 and the 3rd opening OM3 are separated from each other respectively, and each minor face of the first opening OM1 and the second opening OM2 is in the face of the long limit of the 3rd opening OM3.
With reference to Fig. 9, except the first imaginary line VL1 limited in FIG, the second imaginary line VL2 and the 3rd imaginary line VL3, the 4th imaginary line VL4 can also be limited.That is, the 4th imaginary line VL4 is by passing between the first opening OM1 be included in same pixel and the second opening OM2 and limiting along the imaginary line that second direction extends.
In this exemplary embodiment, separator SPC5 is positioned at the crosspoint place of the first imaginary line VL1 and the 4th imaginary line VL4, and alternately arranges along the pixel of arranging in a first direction and a second direction for a pixel.In addition, different from the first example embodiment, separator is not positioned on the second imaginary line VL2 or the 3rd imaginary line VL3.
The flat shape of separator SPC5 is formed as triangle, the first edge first direction of leg-of-mutton separator SPC5 extends and is parallel to the long limit of the 3rd opening OM3, and the first drift angle in the face of the first limit is arranged to towards the region between the first opening OM1 be included in same pixel and the second opening OM2.
As shown in Figure 9, when forming the separator SPC5 according to the organic light emitting apparatus 200 of this example embodiment, although the first deposition mask M1 is supported by separator SPC5 in organic material depositing operation, the edge of the mask open OP1 of the first deposition mask M1 not with the central contact of separator SPC5.Therefore, can reduce, minimize or prevent the foreign substance that can be produced by the edge of the mask open OP1 of the first deposition mask M1 in depositing operation from gathering, and can prevent from gathering by foreign substance the marking caused.
In fig .9, show the first deposition mask M1, but the depositing operation of the second deposition mask M2 and the 3rd deposition mask M3 can be installed execution sequence, to deposit organic emissive materials at the second opening OM2 and the 3rd opening OM3 place respectively, in this case, the mask open OP2 of deposition mask M2 does not contact with the core of separator SPC5 with the edge of the mask open OP3 of deposition mask M3.
Although combined the example embodiment being considered to reality at present to describe the disclosure, but will be appreciated that, the invention is not restricted to disclosed embodiment, but on the contrary, be intended to cover be included in appended claims and equivalent thereof spirit and scope in various distortion and equivalent arrangements.
The explanation of symbol:
100,150,200: emission display CE: common electrode
CL1, CL2: shared layer E1: the first electrode
E2: the second electrode E3: third electrode
M1, M2, M3: deposition mask OL1, OL2, OL3: organic emission layer
OM1, OM2, OM3: opening OP1, OP2, OP3: mask open
PC: circuit part PDL: pixel confining layers
SPC1, SPC2, SPC3, SPC4, SPC5: separator
SU1: the first substrate SU2: the second substrate
VL1, VL2, VL3, VL4: imaginary line PX: pixel
Claims (10)
1. an organic light emitting apparatus, is characterized in that, described organic light emitting apparatus comprises:
First substrate;
Multiple electrode, is positioned in described first substrate;
Pixel confining layers, being positioned on described multiple electrode and comprising multiple opening, described multiple opening exposes described multiple electrode respectively; And
Separator, is positioned in described pixel confining layers,
Wherein, described pixel confining layers comprises the first opening, the second opening and the 3rd opening, described first opening and described second opening adjacent one another are by spacing along first direction for each pixel, the second direction that described 3rd opening edge and described first direction intersect is adjacent with described second opening with described first opening by spacing
Wherein, described separator is positioned at the crosspoint place of the first imaginary line and the second imaginary line, described first imaginary line extends along described first direction and passes between described first opening and described 3rd opening, and described second imaginary line extends along described second direction and passes between described first opening and described second opening.
2. organic light emitting apparatus according to claim 1, it is characterized in that, first organic emission layer is positioned at described first opening part of the described pixel confining layers at the first organic emissive materials place, second organic emission layer is positioned at described second opening part of the described pixel confining layers at the second organic emissive materials place, and the 3rd organic emission layer is positioned at described 3rd opening part of the described pixel confining layers at the 3rd organic emissive materials place.
3. organic light emitting apparatus according to claim 2, is characterized in that, at least one in described first organic emissive materials, described second organic emissive materials and described 3rd organic emissive materials is positioned on described pixel confining layers or described separator.
4. organic light emitting apparatus according to claim 1, it is characterized in that, pass between described first imaginary line described first opening in one pixel and described 3rd opening, described second imaginary line passes laying respectively between described first opening in the pixel adjacent one another are along described first direction and adjacent one another are and described second opening
Described separator comprises first separator at the crosspoint place being positioned at described first imaginary line and described second imaginary line.
5. organic light emitting apparatus according to claim 4, it is characterized in that, described organic light emitting apparatus also comprises the 3rd imaginary line, described 3rd imaginary line extends along described first direction, and to pass between described first opening adjacent one another are and described 3rd opening in the pixel adjacent one another are along described second direction
Described separator comprises second separator at the crosspoint place being positioned at described second imaginary line and described 3rd imaginary line.
6. organic light emitting apparatus according to claim 5, is characterized in that, described first separator and described second separator are alternately arranged along described first direction for each pixel.
7. organic light emitting apparatus according to claim 5, is characterized in that, described first separator and described second separator are alternately arranged along second direction for each pixel.
8. organic light emitting apparatus according to claim 5, it is characterized in that, described first separator and described second separator when described 3rd opening is arranged between described first separator and described second separator away form one another and along opposite directions give prominence to.
9. organic light emitting apparatus according to claim 1, is characterized in that, described separator has leg-of-mutton flat shape.
10. organic light emitting apparatus according to claim 9, is characterized in that, described separator has the first limit extended along described first direction, and the first drift angle in the face of described first limit is outstanding towards the region between described first opening and described second opening.
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| CN202010397213.8A CN111554713B (en) | 2014-04-25 | 2015-03-03 | organic light emitting device |
| CN202010396939.XA CN111554712B (en) | 2014-04-25 | 2015-03-03 | organic light emitting device |
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| KR20140050328 | 2014-04-25 | ||
| KR10-2014-0050328 | 2014-04-25 | ||
| KR10-2014-0134345 | 2014-10-06 | ||
| KR1020140134345A KR101683742B1 (en) | 2014-04-25 | 2014-10-06 | Organic light emitting diode display |
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| CN202010397213.8A Division CN111554713B (en) | 2014-04-25 | 2015-03-03 | organic light emitting device |
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| CN108807478A (en) * | 2018-06-07 | 2018-11-13 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel and electronic device |
| CN110890397A (en) * | 2018-09-10 | 2020-03-17 | 上海和辉光电有限公司 | Array substrate |
| CN109378329A (en) * | 2018-09-28 | 2019-02-22 | 昆山国显光电有限公司 | Organic light-emitting display device and preparation method thereof, the mask plate for preparing support column |
| WO2020062730A1 (en) * | 2018-09-28 | 2020-04-02 | 昆山国显光电有限公司 | Organic light-emitting display device, preparation method thereof, and mask plate for preparing support column |
| US11239295B2 (en) | 2018-09-28 | 2022-02-01 | Kunshan Go-Visionox Opto-Electronios Co., Ltd. | Organic light-emitting display devices, methods for manufacturing the same, and masks for making supporting members |
| CN111403434A (en) * | 2018-12-28 | 2020-07-10 | 乐金显示有限公司 | Organic light emitting display device and method of manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| US9508778B2 (en) | 2016-11-29 |
| CN111554713A (en) | 2020-08-18 |
| CN105047683B (en) | 2020-06-05 |
| EP2940752B1 (en) | 2021-01-13 |
| EP2940752A1 (en) | 2015-11-04 |
| CN111554713B (en) | 2023-11-10 |
| CN111554712A (en) | 2020-08-18 |
| CN111554712B (en) | 2023-11-03 |
| US20150311473A1 (en) | 2015-10-29 |
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